[Long-term prognosis in patients with acute non-ST-segment elevation myocardial infarction depending on dynamics of

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Transthoracic Echocardiography to Assess Post-Resuscitation Left Ventricular Dysfunction After Acute Myocardial Infarction and Cardiac Arrest in Pigs
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Transthoracic Echocardiography to Assess Post-Resuscitation Left Ventricular Dysfunction After Acute Myocardial Infarction and Cardiac Arrest in Pigs

Published on: July 12, 2022

M Ia Krasnosel'skiĭ, E V Koshkina, A A Polupan

    Terapevticheskii Arkhiv
    |December 8, 2011
    PubMed

    Insights

    Persistent diffuse changes in myocardial tissue dopplerography (MTD) after non-ST elevation acute myocardial infarction (AMI) indicate a poor long-term prognosis, increasing the risk of cardiac failure and silent left ventricular dysfunction.

    Area of Science:

    • Cardiology
    • Echocardiography
    • Myocardial Infarction

    Background:

    • Non-ST elevation acute myocardial infarction (NSTEMI) requires understanding long-term prognostic indicators.
    • Myocardial tissue dopplerography (MTD) assesses myocardial function and can reveal subtle changes post-infarction.

    Purpose of the Study:

    • To investigate the long-term prognosis of patients with NSTEMI based on changes in MTD during treatment.
    • To correlate MTD patterns with the development of congestive cardiac failure (CCF) and asymptomatic left ventricular (LV) dysfunction.

    Main Methods:

    • Echocardiography with MTD was performed on 88 NSTEMI patients and 34 healthy controls.
    • MTD measurements of systolic and diastolic velocities were taken at multiple LV wall levels.
    • Patients were followed for 10-18 months post-discharge to assess long-term outcomes.

    Main Results:

    • NSTEMI patients were categorized into subgroups based on MTD patterns: asymmetric decrease (19.3%), diffuse decline (69.3%), and no change (11.4%).
    • Treatment led to a reduction in diffuse MTD decline (35.3%) and an increase in asymmetric MTD (42%) and unchanged MTD (22.7%).
    • A persistent diffuse decrease in MTD was associated with a significantly higher rate of CCF and asymptomatic LV dysfunction.

    Conclusions:

    • Treatment for NSTEMI can improve MTD patterns, shifting from diffuse to asymmetric or normalized patterns.
    • The persistence of diffuse MTD changes post-treatment is a significant unfavorable prognostic factor for long-term cardiac health.
    • MTD is a valuable tool for predicting long-term outcomes in NSTEMI patients.
    Abstract

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